– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Sun 19 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Sun 19 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sun 19 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 14mm), heaviest on Wed morning. Warm (max 21°C on Mon afternoon, min 7°C on Tue night). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Very mild (max 16°C on Sat afternoon, min 6°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | |  |  | |  |  | |  | | | | | | | |
clear | cloudy | light rain | risk tstorm | cloudy | light rain | light rain | mod. rain | light rain | rain shwrs | rain shwrs | rain shwrs | clear | cloudy | rain shwrs | rain shwrs | rain shwrs | rain shwrs | clear | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | 0.1 | 0.5 | — | 0.1 | 4 | 7 | 2 | 1.6 | 0.2 | 0.1 | — | — | 0.3 | 0.9 | 0.1 | 0.1 | — | |
max °C | 17 | 19 | 21 | 15 | 13 | 12 | 9 | 7 | 7 | 7 | 8 | 12 | 9 | 12 | 14 | 11 | 14 | 16 | 12 |
min °C | 13 | 16 | 19 | 12 | 12 | 10 | 7 | 7 | 7 | 6 | 6 | 11 | 7 | 9 | 14 | 9 | 11 | 16 | 9 |
13 | 16 | 19 | 12 | 12 | 9 | 6 | 6 | 6 | 6 | 6 | 10 | 7 | 9 | 14 | 9 | 11 | 16 | 9 | |
2950 | 3100 | 3100 | 2900 | 2700 | 2400 | 2000 | 1800 | 1600 | 1550 | 1550 | 2100 | 2150 | 2150 | 2300 | 2200 | 2200 | 2400 | 2350 | |
Cloud base (m) | 5250 | 4800 | 4650 | 3350 | 2900 | 1750 | 550 | 550 | 550 | 600 | 650 | 950 | 6800 | 5050 | 2200 | 3050 | 2500 | 2250 | 8150 |
 | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — |
 | — | — | — | 8:06 | — | — | 8:07 | — | — | 8:08 | — | — | 8:09 | — | — | 8:12 | — | — | 8:13 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Moderate rain (total 14mm), heaviest on Wed morning. Warm (max 21°C on Mon afternoon, min 7°C on Tue night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 3mm), mostly falling on Wed night. Very mild (max 16°C on Sat afternoon, min 6°C on Wed night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.